Research into the application of a VARPRO-based approach to modal analysis of ambient data from the power grid may improve on existing methods to estimate system damping. This would increase situational awareness of potential system instabilities. Initial exploratory work has involved a first pass at recently acquired data, which shows promising results that warrant further investigation. Direct application of VARPRO curve-fitting provides excellent results compared to brake-test ringdown. The research will need to address practical issues with automating the algorithm with a goal of real-time implementation.
Application of VARPRO to Ambient Mode Estimation
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